Agitator for refrigerating liquids.



Ai EL BAER. AGITATOR Folie, R

EFRIGERATNG LIQUIDE.

APPLICATIGE FILE?) J1\ N.2'. 1905.

iliiliiiilii i ri IH, .F

l iii rf iiiiiiiiiiiIiiiii iiiiiiiiiiii IL'LVN H. BAER, OF WAYN-ESBORO,PENNSYLVANIA, uASSEGNR TG FRCK CGMPANY, GF TNAYNESBORG, EENNSYLUANIA, ACQEJPRATIN.

AGITATR FOR REFRIGERATING LIQUDS.

essere.

To all whom it 'may concern.'

33e it known that ALVIN H. BAER, a citizen of the United States,residing at Waynesboro, in the county of Franklin and State ofPennsylvania, have invented certain new and useful improvements inAgitators for Refrigerating Liquids, of which the following is aspecification.

In the operation of ice makin@ or refrigerating plants, the e'liiciencyoi' the apparatus is materially increased by the thorough, uniform andcontinuous agitation of the refrigerating liquids, which result inmaintaining a substantially uniform temperatureof said liquid in allparts of the tank containing the same, whereas, without such agitation,the Variation in the temperature between the top of the tank, where itis the highest and the bottom of the tank where it is the lowest, isconsiderable.

The object of my said invention is therefore, to provide an improvedconstruction of agitator for tanks containing such liquids, whereby thedesired result may be secured and without undue increase in the cost ofthe apparatus, all as will be hereinafter more fully described andclaimed.

Referring to the accompanying drawings which are made a part hereof andon which similar reference characters indicate similar parts, Figure 1is a longitudinal vertical section through the freezing tank, or thetank containing the refrigerating liquid of the ice makin` orrefrigerating plant, as seen when loo ring in the direction indicated bythe arrows from the dotted line 1 1 in FiO. 2, the agitator being shownin elevation, and the central portion of the tank being broken out inorder that it may be shown on a larger scale. Fig. 2 a horizontalsection as seen when looking in the direction indicated by the arrowsfrom the dotted line 2 2 in Fig.v 1, the tank being broken away on oneside as well as in the center, to enable the apparatus to be shown on alarger scale, and the agitator pipes being also shown in elevation forthe greater portion of their length within the tank. Fig. 8 a view ingeneral similar to Fi 2, but showing the entire width of the tan whichis of a modified construction, and also show- Speeication or" LettersPatent.

Application filed January 27, 19'35.

Fateii'ted Mar. 2%, il.

Serial No. 242,374;

ing a modified arrangement of the agitator, and Fig. l a detail crosssection looking in the direction indicated by the arrow from the dottedline 1 /l in Fig. 2.

in said drawings the portions marked ifi represent the tank proper, andB the shell. or casing of the agitator. lThe tank i is, as shown, builtof metal plates and angle bars riveted together, which is a suitableconstruction, but it may be any suitable tank for the purpose. Theagitator easing B is a casting of the form shown, adapted to be securedby a water tight joint within an aperture in one end of the tank,suitable ilanges being provided for riveting and securing the partstogether, as shown. It is oblong in cross-section, as shown in Fig. t,and has a central partition Z) semi-circular in cross-section asindicated in Fig. el., on one side of which is an inlet passage 5 and onthe other' side of which is the cylindrical agitating chamber (i,terminating in a discharge outlet 7. Said partition Z) extends from theinner end of casing B toward its outer end leaving an opening from inletpassage 5 to chamber' 6 beyond its outer end, as shown, it being ofsufficient length to form the short cylinder 6, within which theagitator blades may operate. Connected with the outer end of the inlet5, which is horizontal and turned to extend parallel with the end of thetank, is an inletmain S having a number of vertical inlet pipes 9connected therewith at intervals across its top. Said inlet pipes 9 areopen and the outer end of the main S is closed. The discharge outlet Textends'in a direction parallel with the side of the tank and adischarge main l() connected thereto and extends lengthwise of the tankto its opposite end where it is connected by a rightangle elbow 11 withanother pipe 12, which extends at right angles with pipe 10 across theend of the tank opposite to the end containing the inlet main S. Aseries of small outlet pipes 13 extend downwardly from the under side ofsaid pipe 12 to near the bottom of the tank, their inner ends beingopened and the outer end of pipe 12 being closed.

The agitator proper consists of a shaft- 15 v YL' ene o i a .der t3 andaty its outer end in a in the i .I 1 oi the the casing l centrally ipropeller blades 19 are on said shaft within the cylinder being arrangedat a suitable distance 'troni each other.

:n operation, the apparatus being constructed as shown in 1 and 2, andthe tank filled with the retrigerating liquid. said liquid flows throughthe pipes 9 into niain S and tills the agitator casing and pipes. Shafti being started in inotion. as indicated by the arrow. the liquid withinthe cylinder is driven through the outlety T and niain 10 into theinaiii 1Q where it is discharged through the pipes 13 toward and nea thehottoni ot the tank. The liquid contained in the cylinder being thusforced out. the liquid troni the upper portion of the tank is drawn inthrough pipes S) and niain S, thus creating a circulation ti'oin the topto the bottoni oit thc tank and itroin one end ot the tank to the other.The liquid discharged through the pipes l?) coininingles with thecoldest liquid in the ank, which is always at the bottoni, and thewarnier liquid is drawn in continuously troni the top. thus creating acoi tant circulation and niainta'ning a substantially even teinperaturein all parts oit the tank with the consequent inaterial ai vanta n theconstruction shown in Fig. 3 the operation substantially the saine ineffect but the torni of the tank is somewhat nioditied. :t h: f. centrallongitudinal partition Q0 extending nearly to the end ot the tankopposite that to which the agitator is attached but leaving' a passageway 21 between the end ot said partition and the end ot said tank. Theinlet pipe extends through said partit-ion 20, an opening being'pi'ovided therefor) which niay be packed to t'orin a close joint. Saidiiilet pipe. the agitator casing and the agitator are ot the saineconstruction and ari'a geinent as described tor the Arincipal views.rlie outlet however is connect d by a short pipe 22 with an outlet inainQ3 exteinllig across the conipartinent of the ank yithin which theliquid is disaty the saine end ot the tank which t charged cains theinlet lipc. rEhe vertical inlet pipes and outletI pipes ot therespective inains are arranged as described for the principal views. nope 'ation the liquid is t'orcet down vardly into the bottoni of thetaiily en ne side ot the partition and drawn in trein the top ot the taif `n the opposite side et the partition it saine end of the tank, theresult being' that J i1| o the i the .liquid Hows around the end ofpartition 20 through the 21 inaking a siniilar circulation ot l troniine cnd ot the tank to the f iii:V other and troni its top to itsbottoni, and resulting in the saine character of agitation a; when theprincipal coiisti'iictioii is used.

t obvious that other inodilications in itorni and ar "angeinent inay bedevised without departing troni iny invention.

Having thus t'ully described niy said invention. what claiin as nevv anddesire to secure by Letters Patent, is

1. The coinbination, with a retrigerating tank. oic an agitator'connected therewith, having an inlet coinprising a pipe extending intothe tank and having inlet openings near the top ot said tank and anoutlet coinprising a pipe leading to within said tank and havingdischarge openings near the bottoni ot said tank. said inlet being` thusarranged to take the liquid troni neai' the top of the tank and saidoutlet to discharge the liquid toward and near the bottoni of the tank,and a propeller within the agitator casing adapted to keep said liquidin circulation, substantially as set forth.

Q. The conibination, with a ret'rige'ating tank, otl an agitator'comprising a casing attached to said tank and having an inlet pipeextending to within said tank and arranged to take the liquid t'i'ointhe upper portion of said tank at one end and an outlet pipe extendingto the opposite end of said tank and having downwardly extendingbranches arranged to discharge said liquid into the lower portion otsaid tank, and a propeller within said casing adapted to keep saidliquid in circulation, substantially as setl torth.

23. The coinbination, with a refrigerating tank. ot' an agitatortherefor coinpi'ising a i sing attached to one end of said tank, andtoi'ined with an inlet eoininunicating with a niain ex'ending across aportion ot one end otl said tank having a series ot upwardly projectinginlet pipes and an outlet extending to the opposite end Ot said tank andcoinniunicating with a transverse inain having a series ot downwardlyprojecting outict pipes, said casing containing a cylindrical portion. ascrew propeller inounted within said portion, ineans for driving saidproieller. and said ineans. substantially as set orth.

il. in a i'et'rigeratiiig tank. the eoinbination ot the agitatorcoinprising a casing attached to said tank and having' an inlet and anoutlet coininunicating therewith, the inlet consisting of a inainextending across one end ot said tank with a series or" pipes eX-teiiding' upwardly troni its top ant the outlet consisting et inainextending to the opposite end ot said tank and connected with atransverse pipe extending across said Opposte end, said transverse pipebeing provided with a, Series of downwardly projeoting pipes7 apropeller mounted Within Said casing, and means for driving saidpropeller, Substantially as set forth.

In Witness whereof, I have hereunto set my hand and Seal at Vaynesboro,Pennsyl- Vania, this 21st day of Jaa'1uar \,'f, A. E.

teen

ltnesses:

`W. H. MANNS, H. l). FRICK.

nlne-

